Bobbin-winding machine



Nov. 4, 1930. B. T. LEVEQUE 1,780,304

BOBBIN WINDING MACHINE Filed April 18, 1928 52 I I 15 if t r: I

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at the same time certain in operation.

Patented Nov. 4, 1930 UNITED s TArEs Par ENT OFFICE BERNARD T. LEVEQUE, 0F WENHAM, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY Application filed April 18, 1928.

19 vide a novel and improved mechanism adapted for use in a bobbin winding machine for causing the bobbin to be thrown out of oper ation automatically when it is completely wound which is simple in construction and \Vith these objects in view, the invention contemplates the provision of a bobbin sup porting spindle and driving means for'the bobbin adapted for one position of the bobbin lengthwise of the spindle to be operatively connected to drive the bobbin. In order to permit the bobbin quickly and certainly to be thrown out of operation when fully wound, v athread contact finger'is provided which rides on the thread mass and through engagement with the bobbin flanges acts to hold the bobbin in operating position on the spindle against a yielding spring pressure.

As the thread mass is built up on the bobbin, the thread contact finger is raised until it is finally moved out of contact with the flange and permits the fully wound bobbin to move out of operative position under the yielding spring pressure above referred to.

The several features of the invention C011- sist also in certain novel and improved constructions, arrangements and combinations of parts hereinafter described and particularly pointed out in the claims, the advantages of which will be readily understood and appreciated by those skilled in the art.

The invention is illustrated in the accomanvin drawin s in its referred fo in and u b b will be readily understood from the dram ings taken in connection with the following detailed description of the construction there in shown.

In the drawings, Fig. 1 is a view in side ele- A ration of the bobbin winding machine; Fig.

2 is a view of the parts shown in Fig. 1 look- BOBBIN-WINDING MACHINE Serial No. 270,907.

ing from the right; Fig. 3 is a detail sectional view taken on the line of Fig. l and Fig. f is a view similar to Fig. 3 after the bobbin has been moved out of winding position.

The machine illustrated in the drawings is provided with a shaft 6 which is journale'd in a bearing 8 in a fixed bracketlO. The shaft is driven from a, small electric motor 12 through the interineshing spiral gears and 16 on the armature shaft of the motor and on the shaft 6. The shaft 6 is provided atirne end with a reduced. portion 18 forming a spindle adapted to support a flanged bobbin 20 of ordinary construction. The shaft {3 constitutes a bobbin driver and during the winding operation, the bobbin is operatively connected to turn with the shaft by means of a small pin 22 secured in the shaft and adapted to engage a correspondin recess in one of the flanges of the bobbin.

In carrying out the present invention, a simple and improved mechanism is provided for disengagingthe bobbin from the pin 22 when the bobbin is fully wound. This mechanism comprises a collar 24 which is keyed to slide on an enlarged portion of the shaft between the bobbin 20 and the gear 16 and is forced yieldingly in a direction to move the bobbin 20 out of engagement with the pin 22 bymeans of a compression spring 26 which is inserted between an abutment on the collar and the gear 16. The collar 24 is keyed to turn with the shaft by the engagement of a small pin fixed in theshaft with a corresponding slot 27 in the collar. The-bobbin of the compression spring 26. The thread contact finger 28 is held against endwise movementonthe fixed shaft 30 by means of Collar 34 which is securedtothe end of the shaft and bears against a sleeve 36 which forms a part of the hub of the thread contact finger 28. A tension spring 38 is coiled about the sleeve 36 and is secured at one end to the collar 34 and at its other end is inserted into a slot- 1O formed in the sleeve 36 so that the thread contact finger is held yieldingly in engagement with the bobbin. When it is desired to place a new bobbin in the machine, the thread contact finger 28 may be moved back against the pressure of its spring 38 by the operator by means of a small lever arm or handle 4-2 projecting downwardly from the hub of the thread contact finger.

YVith this construction of the parts, it will readily be seen that after the machine has been set in operation the thread contact finger 28 is gradually moved back against the pressure of its spring 38 as the mass of the thread on the bobbin increases until the thread contact plate 32 is level with the edge of the flange, when the sleeve 24: will be permitted to move forward under the pressure of the spring 26 to push the bobbin out of contact with the pin 22 and thus render the bobbin winding mechanism inactive. There remains only for the operator to pick the bobbin oil the end of the spindle and cut the thread.

The nature and scope of the invention having been indicated and one embodiment thereof described, what is claimed is:

1. A bobbin winding machine having, in combination, a bobbin supporting spindle, a driver for the bobbin, means adapted for one position of the bobbin lengthwise of the spindle to operatively connect the bobbin to the driver, means tending constantly to move the bobbin out of operative position, and a thread contact finger adapted through con tact with the bobbin flanges to hold the bobbin in operative position and to be moved by the thread mass from between the flanges to release the bobbin.

2. A bobbin winding machine having, in combination, a bobbin supporting spindle, a driver for the bobbin, a pin. actuated by the driver and adapted to engage with a recess in the bobbin, spring means tending constantly to push the bobbin out of engagement with the pin, and a thread contact finger adapted through contact with the bobbin flanges to hold the bobbin in engagemen with the pin against the pressure of the spring and to be moved by the thread mass "from between the flanges to release the bobbin.

3. A bobbin winding machine having, in combination, a bobbin supporting spindle, a driver for the bobbin, means adapted for one position of the bobbin lengthwise of the spindleto operatively connect the bobbin to turn with the driver, a compression spring tending to move the bobbin out of operative position onthe spindle, anda thread contact finger adapted through contact with the bobbin flanges to hold the bobbin in operative position and to be moved by the thread mass to release the bobbin.

4. A bobbin winding machine having, in combination, a bobbin supporting spindle, means for driving the spindle, means adapted for one position of the bobbin lengthwise of the spindle to operatively connect the bobbin to turn with the spindle, spring means tending to move the bobbin out of operative position on the spindle, a thread engaging finger adapted through contact with the bobbin flanges to hold the bobbin in operative position against the pressure of the spring and to be moved by the thread mass from between the flanges to release the bobbin, and means for holding the finger yieldingly in contact with the thread.

5. A bobbin winding machine having, in combination, a bobbin supporting spindle, means for driving the spindle, means adapted for one position of the bobbin lengthwise of the spindle to operatively connect the bobbin to turn with the spindle, a collar loosely mounted on the spindle adjacent the bobbin,

a compression spring for forcing the collar in a direction to move the bobbin out of operative position, and a thread contact finger adapted through contact with the bobbin flanges to hold the bobbin in operative position against the pressure of the spring and to be moved by the thread mass to release the bobbin.

6. A bobbin winding machine having, in combination, a bobbin supporting spindle, means for driving the spindle, a pin adapted to engage with a recess in one side of the bobbin, a collar keyed to slide on the spindle adjacent the bobbin, a spring tending to force the collar in a direction to disengage the bobbin from the pin, and a thread contact finger adapted through contact with the bobbin flanges to hold the bobbin in engagement with the pin against pressure of the spring and to be moved by the thread mass to release the bobbin.

In testimonywhereof I have signed my name to this specification.

BERNARD T. LEVEQUE. 

